/*轮播图*/
.rotation{
    background-color: rgb(204,204,204);
}
.chart{
    background-image: url("../img/about_banner.jpg");
    height: 450px;
    width: 1500px;
    background-size: 100% 100%;
}
.propaganda2>div:nth-child(1){
    font-size: 40px;
    margin-top: 40px;
    margin-left: 238px

}
.propaganda2>div:nth-child(2){
    color: #5a5a5a;
    padding-left: 55px;
    margin-top: 10px;
}